G-Tech Optoelectronics (TPE:3149) Piotroski F-Score: 3 (As of Jul. 15, 2026) — 40% Below Median

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TPE:3149 G-Tech Optoelectronics Corp TPE:3149
51 GF Score
Price NT$87.30
GF Value NT$21.98
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is G-Tech Optoelectronics Piotroski F-Score?

G-Tech Optoelectronics TPE:3149 -5.42% 51 Piotroski F-Score is 3 as of Jul. 15, 2026, which is 40% below its 10-year median of 5.00. GuruFocus rates TPE:3149 with a GF Score™ of 51/100 and a GF Value™ of NT$21.98 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 2,431 Hardware companies, G-Tech Optoelectronics ranks worse than 81.53% on this metric.

Warning Sign:

Piotroski F-Score of 3 is low, which usually implies poor business operation.

The zones of discrimination were as such:

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

G-Tech Optoelectronics has an F-score of 3. It is a bad or low score, which usually implies poor business operation.

The historical rank and industry rank for G-Tech Optoelectronics's Piotroski F-Score or its related term are showing as below:

TPE:3149' s Piotroski F-Score Range Over the Past 10 Years
Min: 3   Med: 5   Max: 6
Current: 3

During the past 13 years, the highest Piotroski F-Score of G-Tech Optoelectronics was 6. The lowest was 3. And the median was 5.

G-Tech Optoelectronics  (TPE:3149) Piotroski F-Score Explanation

The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.

He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.

What he found was something that exceeded his most optimistic expectations.

Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.

Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).

Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.


G-Tech Optoelectronics Piotroski F-Score Related Terms


G-Tech Optoelectronics Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for G-Tech Optoelectronics's Piotroski F-Score can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

G-Tech Optoelectronics Piotroski F-Score Chart

G-Tech Optoelectronics Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only 6.00 3.00 5.00 5.00 3.00

G-Tech Optoelectronics Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Piotroski F-Score Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 5.00 3.00 3.00 2.00 3.00

TPE:3149 vs APH, GLW: Piotroski F-Score Comparison

For the Electronic Components subindustry, G-Tech Optoelectronics's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


G-Tech Optoelectronics Piotroski F-Score vs Hardware Industry

For the Hardware industry and Technology sector, G-Tech Optoelectronics's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where G-Tech Optoelectronics's Piotroski F-Score falls into.


TPE:3149
51GF Score
G-Tech Optoelectronics Corp TPE:3149
Piotroski F-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

How is the Piotroski F-Score calculated?

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

This Year (Dec25) TTM:Last Year (Dec24) TTM:
Net Income was -146.006 + -164.792 + -152.74 + -141.073 = NT$-605 Mil.
Cash Flow from Operations was -183.742 + -49.818 + -98.299 + -78.848 = NT$-411 Mil.
Revenue was 470.677 + 565.958 + 591.967 + 654.146 = NT$2,283 Mil.
Gross Profit was -77.665 + -48.844 + -32.936 + -80.946 = NT$-240 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was
(4676.334 + 4366.864 + 4778.557 + 4870.649 + 4883.292) / 5 = NT$4715.1392 Mil.
Total Assets at the begining of this year (Dec24) was NT$4,676 Mil.
Long-Term Debt & Capital Lease Obligation was NT$1,251 Mil.
Total Current Assets was NT$1,453 Mil.
Total Current Liabilities was NT$988 Mil.
Net Income was -7.48 + -43.885 + -50.325 + -139.069 = NT$-241 Mil.

Revenue was 412.891 + 564.687 + 639.316 + 546.287 = NT$2,163 Mil.
Gross Profit was 19.986 + 40.371 + 23.319 + -59.214 = NT$24 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was
(4101.329 + 4082.914 + 4725.336 + 4031.442 + 4676.334) / 5 = NT$4323.471 Mil.
Total Assets at the begining of last year (Dec23) was NT$4,101 Mil.
Long-Term Debt & Capital Lease Obligation was NT$1,207 Mil.
Total Current Assets was NT$1,968 Mil.
Total Current Liabilities was NT$1,428 Mil.

*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.

Profitability

Question 1. Return on Assets (ROA)

Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

G-Tech Optoelectronics's current Net Income (TTM) was -605. ==> Negative ==> Score 0.

Question 2. Cash Flow Return on Assets (CFROA)

Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

G-Tech Optoelectronics's current Cash Flow from Operations (TTM) was -411. ==> Negative ==> Score 0.

Question 3. Change in Return on Assets

Compare this year's return on assets (1) to last year's return on assets.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Dec24)
=-604.611/4676.334
=-0.12929166

ROA (Last Year)=Net Income/Total Assets (Dec23)
=-240.759/4101.329
=-0.05870268

G-Tech Optoelectronics's return on assets of this year was -0.12929166. G-Tech Optoelectronics's return on assets of last year was -0.05870268. ==> Last year is higher ==> Score 0.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

G-Tech Optoelectronics's current Net Income (TTM) was -605. G-Tech Optoelectronics's current Cash Flow from Operations (TTM) was -411. ==> -411 > -605 ==> CFROA > ROA ==> Score 1.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Dec25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec24 to Dec25
=1251.316/4715.1392
=0.26538262

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=1206.598/4323.471
=0.27908086

G-Tech Optoelectronics's gearing of this year was 0.26538262. G-Tech Optoelectronics's gearing of last year was 0.27908086. ==> This year is lower or equal to last year. ==> Score 1.

Question 6. Change in Working Capital (Liquidity)

Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.

Score 1 if this year's current ratio is higher, 0 if it's lower

Current Ratio (This Year: Dec25)=Total Current Assets/Total Current Liabilities
=1452.759/988.394
=1.4698177

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=1967.663/1428.011
=1.37790465

G-Tech Optoelectronics's current ratio of this year was 1.4698177. G-Tech Optoelectronics's current ratio of last year was 1.37790465. ==> This year's current ratio is higher. ==> Score 1.

Question 7. Change in Shares in Issue

Compare the number of shares in issue this year, to the number in issue last year.

Score 0 if there is larger number of shares in issue this year, 1 otherwise.

G-Tech Optoelectronics's number of shares in issue this year was 226.399. G-Tech Optoelectronics's number of shares in issue last year was 191.388. ==> There is larger number of shares in issue this year. ==> Score 0.

Efficiency

Question 8. Change in Gross Margin

Compare this year's gross margin (Gross Profit divided by sales) to last year's.

Score 1 if this year's gross margin is higher, 0 if it's lower.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=-240.391/2282.748
=-0.10530773

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=24.462/2163.181
=0.01130835

G-Tech Optoelectronics's gross margin of this year was -0.10530773. G-Tech Optoelectronics's gross margin of last year was 0.01130835. ==> Last year's gross margin is higher ==> Score 0.

Question 9. Change in asset turnover

Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.

Score 1 if this year's asset turnover ratio is higher, 0 if it's lower

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Dec24)
=2282.748/4676.334
=0.48814905

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=2163.181/4101.329
=0.52743416

G-Tech Optoelectronics's asset turnover of this year was 0.48814905. G-Tech Optoelectronics's asset turnover of last year was 0.52743416. ==> Last year's asset turnover is higher ==> Score 0.

Evaluation

Piotroski F-Score= Que. 1+ Que. 2+ Que. 3+Que. 4+Que. 5+Que. 6+Que. 7+Que. 8+Que. 9
=0+0+0+1+1+1+0+0+0
=3

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

G-Tech Optoelectronics has an F-score of 3. It is a bad or low score, which usually implies poor business operation.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 3 mean?
G-Tech Optoelectronics (TPE:3149) has a Piotroski F-Score of 3 as of Jul. 15, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on G-Tech Optoelectronics and its competitors. This is 40% below median its historical median of 5.00. Over the past decade, G-Tech Optoelectronics' Piotroski F-Score has ranged from 3.00 to 6.00. According to the industry distribution chart, G-Tech Optoelectronics ranks #1982 out of 2431 companies in the Hardware industry, placing it in the top 81.5%.
Is G-Tech Optoelectronics' Piotroski F-Score too high?
G-Tech Optoelectronics' current Piotroski F-Score of 3 is 40% below median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 6.00. The Hardware industry median Piotroski F-Score is 5.00. G-Tech Optoelectronics' value of 3 is 40% below this industry median. Based on the distribution chart, G-Tech Optoelectronics ranks #1982 out of 2431 companies in the Hardware industry, which is in the bottom quartile relative to peers. Overall, G-Tech Optoelectronics has a GF Score™ of 51/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does G-Tech Optoelectronics' Piotroski F-Score compare to APH and GLW?
According to the Hardware industry distribution chart, G-Tech Optoelectronics ranks #1982 out of 2431 companies for Piotroski F-Score. This places G-Tech Optoelectronics in the lower half of its industry. The industry median Piotroski F-Score is 5.00. G-Tech Optoelectronics' value of 3 is 40% below this benchmark. Historically, G-Tech Optoelectronics' own Piotroski F-Score has ranged from 3.00 to 6.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 5.00, G-Tech Optoelectronics has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Piotroski F-Score for a Hardware company?
The median Piotroski F-Score among Hardware companies is 5.00, based on 2,431 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. G-Tech Optoelectronics's current Piotroski F-Score of 3 is 40% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on G-Tech Optoelectronics and its competitors. For the Hardware industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. G-Tech Optoelectronics's current Piotroski F-Score is 3, which is 40% below median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is G-Tech Optoelectronics stock overvalued right now?
Based on GuruFocus' analysis, G-Tech Optoelectronics (TPE:3149) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$21.98, compared to a current price of NT$87.30 — trading 297.2% above its estimated fair value. The current Piotroski F-Score is 3, which is 40% below median its 10-year median of 5.00 and 40% below the Hardware industry median of 5.00. G-Tech Optoelectronics' overall GF Score™ is 51/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For G-Tech Optoelectronics (TPE:3149), the current Piotroski F-Score is 3 as of Jul. 15, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is G-Tech Optoelectronics (TPE:3149) Overvalued in 2026?

Based on GuruFocus' analysis, G-Tech Optoelectronics stock appears to be overvalued. The current stock price of NT$87.30 is trading 297.2% above its estimated GF Value™ of NT$21.98. GuruFocus considers G-Tech Optoelectronics to be Significantly Overvalued.

Key valuation signals for TPE:3149:

  • Piotroski F-Score: 3 (40% below median its 10-year median of 5.00)
  • GF Value™: NT$21.98 vs. price of NT$87.30 (297.2% above fair value)
  • GF Score™: 51/100 with 6 warning signs
  • Industry Position: 40% below the Hardware median (#1982 of 2431)

No single metric tells the full story. See the TPE:3149 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


G-Tech Optoelectronics Business Description

Address No. 99, Zhongxing Road, Tongluo Township, Miaoli, TWN, 36647
G-Tech Optoelectronics Corp operates in an optoelectronic glass processing market. The company manufactures and markets optical glass products and electronic components. The segments of the company are Smart optoelectronics, that is revenue-generating segment; Smart buildings, and Smart cars. The Smart optoelectronics is in charge of designing, manufacturing, and selling general consumer electronics vehicle glass as well as protective touch control glass for industrial control computers.
51GF Score

Get the complete analysis for TPE:3149

Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$87.30
Price
NT$21.98
GF Value